By Kissell, Fred N.
Compiled through the U.S. Dept of future health and Human companies, CDC/NIOSH place of work of Mine safeguard and healthiness examine, this 2003 guide describes potent equipment for the keep an eye on of mineral dusts in mines and tunnels. It assumes the reader knows mining. the 1st bankruptcy bargains completely with dirt regulate tools, whatever the program. it's a short educational on mining airborne dirt and dust keep an eye on and should be of aid to the reader whose airborne dirt and dust keep watch over challenge doesn't comfortably healthy any of the mining apparatus niches defined in later chapters. the following chapters describe airborne dirt and dust keep watch over equipment for other kinds of mines and mining gear. This contains underground coal and hard-rock mines, in addition to floor mines, stone mines, and hard-rock tunnels. simply because airborne dirt and dust sampling has such a lot of pitfalls, a bankruptcy on tools used to pattern dirt is integrated. For these events while there is not any sensible engineering regulate, a bankruptcy on respirators can be incorporated.
Content:
• entrance topic
• checklist of Illustrations
• record of Tables
• Unit of degree Abbreviations utilized in This record
• desk of Contents
• approximately This instruction manual
• Acknowledgments
1. dirt keep watch over tools in Tunnels and Underground Mines
2. non-stop Miner and Roof Bolter dirt keep an eye on
three. Longwall airborne dirt and dust keep an eye on
four. dirt keep watch over in Stone Mines
five. floor Mine airborne dirt and dust keep an eye on
6. Underground Hard-Rock airborne dirt and dust keep watch over
7. regulate of dirt in Hard-Rock Tunnels
eight. how to define the most important airborne dirt and dust assets
nine. airborne dirt and dust Respirators in Mines and Tunnels
Index
Read or Download Handbook for Dust Control in Mining PDF
Similar mining books
This e-book constitutes the refereed lawsuits of the tenth ecu convention on Evolutionary Computation, computing device studying and knowledge Mining in Bioinformatics, EvoBIO 2012, held in Málaga, Spain, in April 2012 co-located with the Evo* 2012 occasions. The 15 revised complete papers offered including eight poster papers have been conscientiously reviewed and chosen from various submissions.
The purpose of this ebook is to assemble the latest works that deal with matters relating to the idea that of mining complicated facts. the total wisdom discovery method being concerned, our objective is to supply researchers facing each one step of this strategy by way of key entries. really, handling advanced information in the KDD procedure implies to paintings on each step, ranging from the pre-processing (e.
This entire consultant describes a few of the facets of shale shaker layout, purposes, and enhancements for maximizing potency. Drilling engineers will locate technical info for larger knowing and layout of shale shakers; and foremen and derrickmen will detect worthwhile, useful insights to accomplish optimal shaker functionality.
Applied petroleum reservoir engineering
Данное издание посвящено проблемам разработки месторождений нефти. the 1st bankruptcy features a evaluation of fluid and rock homes. a number of new correlations are provided during this bankruptcy that may support these doing machine modeling. bankruptcy 2 features a improvement of the overall fabric stability equation.
- Seismic Interpretation: The Physical Aspects
- Data Mining im Personalmanagement: Eine Analyse des Einsatzpotenzials zur Entscheidungsunterstützung
- Fundamentals of Aqueous Metallurgy
- Rapid Excavation and Tunneling Conference Proceedings 2011
Extra resources for Handbook for Dust Control in Mining
Example text
On low-coal machines, the inlet is usually at the boom hinge point, which is not as good because it is farther from the cutting drum. However, since low-coal machines usually work in entries where the clearance over the machine is less, the rollback of dust that might result from using a hinge point inlet may be offset by higher forward air velocities through a narrower space over the miner. 9 One frequently asked question is what the airflow ratio should be, that is, the ratio of ventilation airflow to scrubber airflow.
The number of sprays and the type of spray nozzle chosen are important for best dust control performance. For example, pick-point sprays at the outer edge of the vanes, now commonly used, are superior to the old cavity-filling sprays that were mounted on a pipe welded to the side of the vane [Jankowski et al. 1987]. Also, the greater the number of sprays, the more thoroughly water is mixed with the broken coal. In a test that varied the number of sprays, Bazzanella et al. [1986] showed that dust suppression is improved by increasing the number of sprays on a shearer drum, even when the total water flow and nozzle pressure were held constant with the use of smaller orifice nozzles.
Colinet et al. [1997] give dust source contributions obtained from a survey of 13 longwalls (table 3-1). The average percent values reflect the average contribution of a given source. For example, on average, intake sources account for 9% of the dust at the longwalls that were surveyed. The concentration values in table 3-1 reflect dust levels measured only when the shearer was operating, using the sampling locations shown in figure 3-1 and explained in the accompanying text. Except for the intake, the values shown represent the difference between the upwind and downwind dust concentration values.